Leica M prototype

The Leica M3 was introduced in 1954 after many years of development and testing, becoming the most commercially successful of all M-series cameras. It was the first model to feature the now-iconic M-mount and introduced a combined rangefinder-viewfinder eyepiece with parallax correction and automatic frame lines for three focal lengths. The earliest complete prototypes of the Leica M3 were built as early as 1948-49.

The camera being offered here is one of these earliest known prototypes. It is unnumbered and lacks engravings, with all parts—including the back door, camera chassis, and base plate—being hand-machined and unique to this particular camera. The body is 2mm shorter than the final Leica M3 and is covered in sharkskin-type vulcanite. This camera displays numerous distinctive features not seen in any production Leica, such as special strap lugs, an external film counter, a uniquely shaped winding lever, and a 'flat' style for the frames surrounding the viewfinder and rangefinder windows. It remains in beautiful condition and is fully functional.

Included with this camera is a unique, unnumbered M-mount Elmar 3.5/3.5cm lens. This prototype lens features a special construction with a small slot on the lens base, likely intended for a detachable wide-angle viewfinder attachment. Additionally, the camera comes with a prototype light meter, similar in shape to the Leica-Meter but of an entirely different construction.

This camera was featured in Lager I Cameras on page 176. It stands as one of the most significant cameras in Leica's history. This remarkable prototype represents a pivotal moment in Leica’s journey, marking the transition to the legendary M-series that redefined rangefinder photography. Its unique features and craftsmanship make it an extraordinary piece of photographic history. As one of the earliest prototypes, this camera is a rare and invaluable artifact, embodying the innovation and precision that have cemented Leica’s reputation in the world of photography.